TP5100 Module 3.7V Li-ion Battery 18650 Charge Protection Board 1 String 4.2V 2 String 8.4V Universal LED Constant Current Drive
USD 1.07USD 1.29
TP5100 Module 3.7V Li-ion Battery 18650 Charge Protection Board 1 String 4.2V 2 String 8.4V Universal LED Constant Current Drive